Pith Number

pith:NLADDYAA

pith:2010:NLADDYAA4AIDYRQGP4CWRRYZF4

not attested not anchored not stored refs pending

Safe Feature Elimination in Sparse Supervised Learning

Laurent El Ghaoui, Tarek Rabbani, Vivian Viallon

arxiv:1009.3515 v2 · 2010-09-17 · cs.LG · math.OC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NLADDYAA4AIDYRQGP4CWRRYZF4}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T04:38:16.647488Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ac031e000e0103c46067f0568c7192f0df3ae4585759fa9117f7bd358d03453

Aliases

arxiv: 1009.3515 · arxiv_version: 1009.3515v2 · doi: 10.48550/arxiv.1009.3515 · pith_short_12: NLADDYAA4AID · pith_short_16: NLADDYAA4AIDYRQG · pith_short_8: NLADDYAA

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/NLADDYAA4AIDYRQGP4CWRRYZF4 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 6ac031e000e0103c46067f0568c7192f0df3ae4585759fa9117f7bd358d03453

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "81b3356abf34fed8909a2f9ab72e9f135110a44be32ce86b1c076ba39d775c54",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2010-09-17T21:29:09Z",
    "title_canon_sha256": "f2bf99252be3681ab61ef00e4ab1625f6b047ff7db43f8b29c999fb634b055df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.3515",
    "kind": "arxiv",
    "version": 2
  }
}